This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. I have heard bad things about these EFAX drives but surely they are not so bad that 6 identical drives would all be unusable? So, how much should I worry about these errors? Our next test shifts focus from a pure 4K random read or write scenario to a mixed 8K 70/30 workload. We show how performance scales in this setting from 2T/2Q up to 16T/16Q. When it came down to the drive that offered the best 8K 70/30 throughput, all drives performed very close when configured in RAID5 in our Synology NAS. Comparing first and second generation Red HDDs, the 4TB model did offer some gains over the 3TB version depending on the workload intensity, although those gains did narrow in a few spots. Slotting in between the 3TB and 4TB Red models, the 1TB 2.5″ version proved to be quite capable. Compatibility: Unlike desktop drives, WD Red hard drives are specifically designed and tested for NAS and include NASware™ technology which fine tunes drive parameters to match NAS system workloads for optimum performance. The WD Red ships with features to enhance the performance and reliability of the drive. 3D Active Balance Plus is a dual-plane balance control technology that enhances overall drive performance and reliability by reducing vibration and its associated wear and tear on internal components. WD uses NASware firmware on all Red HDDs, with version 2.0 standard on the 4TB model. This firmware reduces noise and power consumption, enables users to monitor performance and reliability via the SMART command set, and provides error recovery tools.

The only positive here is that the resilver did finish, and encountered no errors along the way, but the performance operating in the RAIDZ array was completely unacceptable. That 9 day and almost 14-hour rebuild means that using the WD Red 4TB SMR drive inadvertently in an array would lead to your data being vulnerable for around 9 days longer than the WD Red 4TB CMR drive or Seagate IronWolf. If you use WD Red CMR drives, you had class-leading performance in this test but if you bought a WD Red SMR drive, perhaps not understanding the difference, you would have another 9 days of potentially catastrophic data vulnerability. In read tests the SMR drive performs fairly similarly to the CMR based WD40EFRX. HDTune Write BenchmarkIt is important to choose a drive purpose-built for RAID-optimized NAS systems to ensure optimum performance and preserve your valuable data. Take the following into consideration when choosing a hard drive for your NAS: First up is the file copy test. Just a reminder, this test was performed as immediately as possible after completing the drive preparation process. File Copy Test Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.

We are going to start with some general benchmarks to try and place the WD Red (WD40EFAX) performance in a larger context. HDTune Read Benchmark Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is.

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In the file copy test, the effects of the slower SMR technology starts to show itself a bit. The WD40EFAX turns in performance numbers that are significantly worse than the CMR drives. According to iXsystems, WD Red SMR drives running firmware revision 82.00A82 can cause the drive to enter a failed state during heavy loads using ZFS. This is the revision of firmware that came on both of our drives. We did not experience this failure mode, and instead only received extremely poor performance. Perhaps that was because we were testing the use of the drive as a replacement rather than building an entire array of SMR drives. In either case, we suggest not using them. As an industry-leading hard drive manufacturer, Western Digital stands behind their NAS storage solutions with the assurance of a 3-year limited warranty and world-class support services for hassle free data storage. Es importante elegir un disco especialmente diseñado para sistemas NAS optimizados para RAID a fin de garantizar un rendimiento óptimo y conservar sus datos valiosos. Cuando elija un disco duro para su NAS, tenga en cuenta los siguientes aspectos:

In the first workload, we measured a long sample of random 4k performance with 100% write and 100% read activity. The WD Red 4TB scored 107 IOPS read and 137 IOPS write, placing it in the middle of the distribution of results, and notably better than the Red 3TB. Why is that? Why keep SMR and PMR drives with the SAME capacity in the same line and HIDING this info from customers? So they can target “specific” markets with the SMR drives? It seems like a marketing TEST!!! How BIG is it?These targeted tests are not designed to be comprehensive, but instead, illuminate any obvious differences between the SMR drive and its CMR competitors. The Web Server test is comprised of 100% read activities across our range of threads and queue depths. As with most of the other benchmarks, the Red 4TB performs better than the Seagate NAS 4TB and WD Red 3TB but not as well as the Constellation CS 3TB or Se 4TB. RAID Ready: WD Red hard drives are engineered with RAID error recovery control to help reduce failures within multi-bay NAS systems, unlike most desktop drives that are configured for generic use. Customers MUST be informed of this new tech, even those using EXTERNAL SINGLE DRIVES ENCLOSURES!!! I have many WD external drives, and i DON’T WANT any drive with SMR!!! Period! In PCMark8, the WD40EFAX manages to outperform the CMR WD40EFRX. The SMR drive has a much larger cache than the CMR version, 256MB vs 64MB, which perhaps helps account for the win here. In these kinds of shorter burst activity workloads, one can see how SMR may be used as a substitute.

The standard deviation chart further highlights the strong performance at a thread count of two and queue of sixteen. Otherwise, the Red 4TB does not stand out among the comparables but does consistently outperform the Seagate NAS 4TB and the Red 3TB. Next, we will move on to the tests focused on the WD40EFAX and NAS RAID arrays. WD Red SMR v. CMR Part II: The Not So Good I am in the looking to replace my WD Red 3TB drives with WD Red Plus 6TB drives (making sure CMR tech is used). Now i noticed that a new WD Red Plus line has entered the market in 2021, namely the EFZX series with 128mb cache instead of 64mb cache currently used by the EFRX series. Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Como fabricante de discos duros líder del sector, Western Digital respalda sus soluciones de almacenamiento NAS con la seguridad de una garantía limitada de 3 años, junto con servicios de soporte de primera clase para un almacenamiento de datos sin complicaciones.Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Compatibilidad: A diferencia de los discos de escritorio, los discos duros WD Red están diseñados y probados para funcionar con NAS de forma específica e incluyen la tecnología NASware™ que ajusta con precisión los parámetros de la unidad para que coincidan con las cargas de trabajo del sistema NAS y, así, obtener un rendimiento óptimo. Aside from a jump in maximum latency at a thread count of two and high queue depths, the same points as the WD Red 4TB achieves high throughput, the Red 4TB performs about average throughout the 8K maximum latency benchmark. It’s performance at the greatest workloads is again closer to the Constellation CS 4TB and the Se 4TB than the other comparables.